Subreddit Finder - free subreddit finder

Hey Product Hunt! 👋 I'm Purushottam, founder of runbyte.tech. A while back I spent 10 months looking for my first paying customer, not because my product was bad, but because I had no idea where the people who needed it actually were. I tried cold DMs, paid ads, posting into the void. The thing that finally worked was way simpler: finding the subreddits where people were already describing the exact problem I solved, and just... showing up there. That search, "which subreddits actually matter for my product?", used to take me hours of manually digging through Reddit. So I built Subreddit Finder to do it in seconds: paste your product's URL, and it reads your page and hands you back the subreddits where your future customers are already hanging out. No signup, no credit card, completely free. Would love for you to try it on your own product and reply here with what it finds, curious how well it matches for different kinds of products (SaaS, physical products, agencies, etc. all behave a bit differently). If you end up wanting to go a step further, seeing the actual threads worth replying to, not just the subreddits, that's what my other product, Reddit Relevance, does. But this tool stands on its own, and I'd genuinely love your feedback either way. Thanks for checking it out! 🙏